/Engine/Plugins/Online/OnlineFramework/Source/Party/Public/SocialToolkit.h
bool GetAuthAttribute ( [ESocialSubsystem](API\Plugins\Party\ESocialSubsystem) SubsystemType, const [FString](API\Runtime\Core\Containers\FString) & AttributeKey, [FString](API\Runtime\Core\Containers\FString) & OutValue ) const